/**
 * BibSonomy CV Wiki - Wiki for user and group CVs
 *
 * Copyright (C) 2006 - 2016 Knowledge & Data Engineering Group,
 *                               University of Kassel, Germany
 *                               http://www.kde.cs.uni-kassel.de/
 *                           Data Mining and Information Retrieval Group,
 *                               University of Würzburg, Germany
 *                               http://www.is.informatik.uni-wuerzburg.de/en/dmir/
 *                           L3S Research Center,
 *                               Leibniz University Hannover, Germany
 *                               http://www.l3s.de/
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.bibsonomy.wiki.tags;

/**
 * abstract tag for user tags
 * 
 * @author tni
 */
public abstract class UserTag extends AbstractTag {

	/**
	 * default constructor
	 * @param name
	 */
	public UserTag(final String name) {
		super(name);
	}

	@Override
	protected String renderSafe() {
		String errorString = this.messageSource.getMessage("cv.error.user", new Object[]{this.getName()}, this.locale);
		return this.requestedUser != null  ? this.renderUserTag() : errorString;
	}
	
	/**
	 * internal render method
	 * @return the string to append to the output
	 */
	protected abstract String renderUserTag();

}
